- Capital: Nouakchott
- Population: 4,614,974
- Surface Area: 1,030,700 km2
- Currency: Ouguiya (1 EUR=42.8600 MRO)
- Religion: Mostly Islam
- Belongs to: ACP, AMU, Arab League, IMF, UN, AU
- Capital: Riyadh
- Population: 32,175,000
- Surface Area: 2,149,690 km2
- Currency: Saudi riyals (1 EUR=4.0245 SAR)
- Religion: Mostly Islam
- Belongs to: ACD, Arab League, G20, GCC, IMF, UN, OPEC